Ship:Osborne

Latest revision as of 13:12, 5 July 2026

VIII

9,040,000

Osborne — U.S.A. Tech Tree Tier VIII Destroyer.

A destroyer armed with dual-purpose 137 mm guns, which were developed in the U.S. between 1939 and 1940 as a replacement for the 127 mm Mark 12 guns. In terms of size and layout, she is similar to Fletcher-class ships.

Pros

Access to 137mm SAP shells that penetrate 38mm armor
High SAP damage per minute
Smoke Screen consumable with pooled usage time available

Cons

Only has one set of torpedo tubes
Total usage time of Smoke Screen consumable is shorter than an ordinary destroyer

Ship Stats

Hull Information

Main Battery

Torpedoes

AA Defense

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5

Consumables

Slot 1: Damage Control Party  (5.0s action, 40.0s cooldown)
Slot 2: Smoke Generator  (160.0s total usage, 15.0s minimum action, 20.0s cooldown)
Slot 3: Engine Boost  (3 charges, 120.0s action, 120.0s cooldown)

Gallery

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-<div class="b-popup"><div class="b-popup_head js-tech-nav_head"><div><h2>Historical Gallery</h2></div><span class="b-tech-nav_arrow"></span></div><div class="b-popup_content" style="display: none;"><div>
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SURVIVABILITY	Osborne (A)	Osborne (B)
• Hit Points	14100	17800
• Torpedo protection damage reduction (%)	0%

ARMOR DETAIL
• Belt (mm)	19
• Deck (mm)	19
• Superstructure (mm)	13
• Extremities (mm)	19

MANEUVERABILITY	Osborne (A)	Osborne (B)
• Maximum speed (kt)	35.0	35.0
• Turning circle radius (m)	630	630
• Rudder-shift time (sec)	5.8	4.1

CONCEALMENT	Osborne (A)	Osborne (B)
• Detectability by sea (km)	7.63	7.63
• Detectability by air (km)	3.47	3.47
• Detectability after firing main guns in smoke (km)	3.13
• Detectability by depths (km)	3.47	3.47

MAIN BATTERY	Mk8 mod. 1	Mk8 mod. 2
• Arrangement	4×1.0 137mm
• Firing range (km)	11.4	12.54
• Reload time (sec)	3.2
• Rate of fire (shots/min)	18.8
• 180° turn time (sec)	14.4

DISPERSION
• Dispersion type	Standard DD dispersion
• Dispersion formula	Dispersion (m) = 7.5 × range(km) + 15
• Sigma	2.0
• Maximum dispersion (m)	100
• Dispersion at 5 km	52
• Dispersion at 10 km	90
• Dispersion at 11.4 km	100

HE SHELL
• Name	137 mm HE Mk1
• Maximum damage	1950
• Fire chance (%)	8.0%
• Shell velocity (m/s)	823
• Shell weight (kg)	34
• Penetration (mm)	23

SAP SHELL
• Name	137mm CS Mk1
• Maximum damage	3000
• Shell velocity (m/s)	823
• Shell weight (kg)	34
• Penetration (mm)	38
• Fuse time (sec)	0.03
• Ricochet start (°)	65
• Always ricochet (°)	75
• Normalisation (°)	45
• Arming threshold (mm)	25

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